sv_demo.c

   1 #include "quakedef.h"
   2 #include "sv_demo.h"
   3
   4 extern cvar_t sv_autodemo_perclient_discardable;
   5
   6 void SV_StartDemoRecording(client_t *client, const char *filename, int forcetrack)
   7 {
   8         char name[MAX_QPATH];
   9
  10         if(client->sv_demo_file != NULL)
  11                 return; // we already have a demo
  12
  13         strlcpy(name, filename, sizeof(name));
  14         FS_DefaultExtension(name, ".dem", sizeof(name));
  15
  16         Con_Printf("Recording demo for # %d (%s) to %s\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress, name);
  17
  18         // Reset discardable flag for every new demo.
  19         PRVM_EDICTFIELDFLOAT(client->edict, prog->fieldoffsets.discardabledemo) = 0;
  20
  21         client->sv_demo_file = FS_OpenRealFile(name, "wb", false);
  22         if(!client->sv_demo_file)
  23         {
  24                 Con_Print("ERROR: couldn't open.\n");
  25                 return;
  26         }
  27
  28         FS_Printf(client->sv_demo_file, "%i\n", forcetrack);
  29 }
  30
  31 void SV_WriteDemoMessage(client_t *client, sizebuf_t *sendbuffer, qboolean clienttoserver)
  32 {
  33         int len, i;
  34         float f;
  35         int temp;
  36
  37         if(client->sv_demo_file == NULL)
  38                 return;
  39         if(sendbuffer->cursize == 0)
  40                 return;
  41
  42         temp = sendbuffer->cursize | (clienttoserver ? DEMOMSG_CLIENT_TO_SERVER : 0);
  43         len = LittleLong(temp);
  44         FS_Write(client->sv_demo_file, &len, 4);
  45         for(i = 0; i < 3; ++i)
  46         {
  47                 f = LittleFloat(client->edict->fields.server->v_angle[i]);
  48                 FS_Write(client->sv_demo_file, &f, 4);
  49         }
  50         FS_Write(client->sv_demo_file, sendbuffer->data, sendbuffer->cursize);
  51 }
  52
  53 void SV_StopDemoRecording(client_t *client)
  54 {
  55         sizebuf_t buf;
  56         unsigned char bufdata[64];
  57
  58         if(client->sv_demo_file == NULL)
  59                 return;
  60
  61         buf.data = bufdata;
  62         buf.maxsize = sizeof(bufdata);
  63         SZ_Clear(&buf);
  64         MSG_WriteByte(&buf, svc_disconnect);
  65         SV_WriteDemoMessage(client, &buf, false);
  66
  67         if (sv_autodemo_perclient_discardable.integer && PRVM_EDICTFIELDFLOAT(client->edict, prog->fieldoffsets.discardabledemo))
  68         {
  69                 FS_RemoveOnClose(client->sv_demo_file);
  70                 Con_Printf("Stopped recording discardable demo for # %d (%s)\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress);
  71         }
  72         else
  73                 Con_Printf("Stopped recording demo for # %d (%s)\n", PRVM_NUM_FOR_EDICT(client->edict), client->netaddress);
  74
  75         FS_Close(client->sv_demo_file);
  76         client->sv_demo_file = NULL;
  77 }
  78
  79 void SV_WriteNetnameIntoDemo(client_t *client)
  80 {
  81         // This "pseudo packet" is written so a program can easily find out whose demo this is
  82         sizebuf_t buf;
  83         unsigned char bufdata[128];
  84
  85         if(client->sv_demo_file == NULL)
  86                 return;
  87
  88         buf.data = bufdata;
  89         buf.maxsize = sizeof(bufdata);
  90         SZ_Clear(&buf);
  91         MSG_WriteByte(&buf, svc_stufftext);
  92         MSG_WriteUnterminatedString(&buf, "\n// this demo contains the point of view of: ");
  93         MSG_WriteUnterminatedString(&buf, client->name);
  94         MSG_WriteString(&buf, "\n");
  95         SV_WriteDemoMessage(client, &buf, false);
  96 }